Not all electronic signatures are equal : and in HR, choosing the wrong type can mean the difference between a document that holds up in court and one that doesn’t.
Most HR teams know they need to move away from paper. Fewer understand that “electronic signature” is not a single thing. Under European law, there are three legally distinct types, each with different levels of security, identity verification, and legal weight. Choosing the right one for each HR document type is not a technical question : it’s a legal and operational one.
This article breaks down the three signature types recognised under eIDAS 2.0, maps them to the most common HR use cases, and explains how to think about the decision in practice.
The Three Types of Electronic Signature Under eIDAS 2.0
The eIDAS regulation, updated in 2024 and now applying across all 27 EU member states, defines three tiers of electronic signature. Each tier builds on the previous one, adding more rigour around identity verification and technical security.
1. Simple Electronic Signature (SES)
A simple electronic signature is the most basic form. It covers any electronic indication of intent to sign: a typed name at the bottom of an email, a scanned image of a handwritten signature, a checkbox clicked on a form. There is no requirement to verify the identity of the signer, and no technical mechanism to detect whether the document has been altered after signing.
SES carries legal validity in principle, intent matters in contract law, but it is easily challenged. If a dispute arises over whether a person actually signed a document, or whether the document was modified after signing, a simple electronic signature provides minimal protection.
In HR, SES is suitable for: low-stakes internal documents where identity is not in question and the risk of dispute is minimal. Informal acknowledgements, internal surveys, non-binding confirmations.
2. Advanced Electronic Signature (AES)
An advanced electronic signature goes significantly further. Under eIDAS, it must meet four criteria: it must be uniquely linked to the signer, it must be capable of identifying the signer, it must be created using data that the signer can use under their sole control, and it must detect any subsequent changes to the signed document.
In practice, this means the signer’s identity is verified before or during the signing process: typically through a combination of email authentication, SMS one-time passwords, or biometric checks. The signature is cryptographically bound to the document, so any tampering after signing is detectable.
AES is the standard used by most professional electronic signature platforms, and it covers the vast majority of HR document needs in terms of legal weight and security.
In HR, AES is suitable for: employment contracts, NDAs, amendments to contracts, remote work agreements, offer letters, training acknowledgements, disciplinary letters, and most standard HR documentation.
3. Qualified Electronic Signature (QES)
A qualified electronic signature is the highest tier. It has the same legal effect as a handwritten signature across all EU member states, this equivalence is mandated by eIDAS and cannot be challenged on the grounds that the signature is electronic. It must be created using a qualified electronic signature creation device (QSCD), and it must be based on a qualified certificate issued by a Qualified Trust Service Provider (QTSP), an entity accredited and supervised by a national authority and listed on the EU Trust List.
Obtaining a QES requires robust identity verification, typically a face-to-face or video-based identity check that meets the standards defined by ETSI EN 119 461, the European standard for remote identity proofing.
In HR, QES is suitable for: settlement agreements, termination agreements where legal certainty is critical, cross-border employment contracts subject to multiple jurisdictions, executive-level agreements, and any document where the stakes of a legal challenge are high enough to warrant the maximum level of assurance.
Why This Matters More in HR Than in Other Departments
HR documents are, by their nature, contested terrain. Employment contracts are referenced in wrongful dismissal claims. Termination letters are scrutinised in labour court proceedings. NDAs are invoked in intellectual property disputes. Payslip delivery is regulated in several EU jurisdictions.
The legal defensibility of a signed HR document depends not just on whether it was signed, but on whether the signing process creates a reliable, verifiable record of who signed, when, and that the document has not been altered since. This is exactly what the eIDAS signature tiers are designed to address.
Using a simple electronic signature for an employment contract is not necessarily invalid, but it creates a vulnerability. If the signing process is challenged in a labour tribunal, the burden of proof falls on the employer to demonstrate that the signature is authentic and the document unmodified. With an advanced or qualified signature from a certified platform, that proof is built into the process.
A Practical Mapping: Which Signature for Which Document?
The following is a working guide for HR teams, based on the combination of legal risk, frequency of use, and the level of identity assurance typically required.
| HR Document | Recommended Signature Type | Rationale |
|---|---|---|
| Employment contract | AES (minimum) / QES (recommended for executive or cross-border) | High legal weight; central reference in any dispute |
| Contract amendment / addendum | AES | Modifies a legally binding document; traceability essential |
| NDA / confidentiality agreement | AES | Enforceable in IP or trade secret disputes |
| Offer letter | AES | Establishes pre-contractual obligations |
| Remote work / telework agreement | AES | Increasingly regulated; subject to inspection |
| Disciplinary letter / warning | AES | Must demonstrate receipt and content integrity |
| Termination letter | AES / QES | High litigation risk; proof of delivery and content critical |
| Settlement / severance agreement | QES | Maximum legal certainty required; often reviewed by courts |
| Training acknowledgement | SES / AES | Lower stakes; SES acceptable if identity is not in question |
| Payslip delivery | Certified delivery (with timestamp) | Legal proof of delivery required in several jurisdictions |
| Internal policy acknowledgement | SES | Minimal legal risk; intent sufficient |
| Executive / C-suite agreements | QES | High value; cross-border recognition essential |
The Identity Verification Question
One aspect HR teams often overlook is that signature type and identity verification are related but separate considerations. A platform can offer advanced electronic signatures without robust identity verification upstream, meaning the document is cryptographically secured, but the link to the signer’s actual identity is weak.
For HR onboarding in particular, identity verification matters independently of the signature itself. Verifying that a new hire is who they say they are (using document scanning, biometric liveness detection, and cross-referencing against official ID databases) is a compliance requirement in its own right under KYC-adjacent obligations and internal risk management policies.
A complete HR digital workflow therefore needs both: a signature process calibrated to the legal risk of each document type, and an identity verification step that creates a reliable, auditable record of who the signatory is.
This is the difference between a standalone e-signature tool and a full Digital Transaction Management platform. The former handles the signature event. The latter handles the entire chain: identity, signature, timestamping, and certified long-term archiving.
What Changes With eIDAS 2.0
The 2024 update to eIDAS introduces several developments relevant to HR teams.
The most significant is the European Digital Identity Wallet (EUDI Wallet), which member states are required to make available to all citizens by 2027. The wallet allows individuals to store and share verified identity attributes, including their qualified credentials, across borders and platforms. For HR, this means that identity verification during onboarding and contract signing will become faster, more standardised, and more portable: a candidate who has already verified their identity once via their EUDI Wallet can reuse those credentials without repeating the process.
eIDAS 2.0 also strengthens the framework for Verifiable Credentials (VCs), cryptographically secured digital statements that can prove attributes like professional qualifications, educational credentials, or employment history without sharing unnecessary personal data. In the medium term, this will change how HR teams approach credential verification during recruitment.
For now, the practical implication is straightforward: HR teams that build their document workflows on platforms aligned with eIDAS 2.0 standards are investing in infrastructure that will scale with the regulatory environment rather than against it.
How to Choose a Platform That Supports All Three Tiers
Not all electronic signature platforms offer all three eIDAS signature types. Some are built primarily for simple or advanced signatures and do not offer qualified signatures at all. Others offer QES in some markets but not others, depending on their QTSP accreditations.
When evaluating a platform for HR use, the key questions are:
On signature coverage: Does the platform support SES, AES, and QES within a single workflow, so that document type can determine signature level rather than the other way around?
On QTSP status: Is the provider itself a Qualified Trust Service Provider, listed on the EU Trust List? Or does it rely on a third-party QTSP for its qualified signatures? The latter is not necessarily a problem, but it adds a dependency and potentially a gap in the audit trail.
On identity verification: Is identity proofing integrated into the platform, or does it require a separate tool? Can it meet the ETSI EN 119 461 standard for remote identity verification when QES is required?
On archiving: Does the platform include long-term qualified archiving, ensuring that signed documents retain their legal validity for the full statutory retention period, which in several EU jurisdictions can be 10 years or more for employment contracts?
On geographic coverage: If your organisation operates in multiple EU countries, does the platform’s QTSP accreditation cover all relevant markets?
Signaturit Group, as Europe’s largest Qualified Trust Service Provider group, operates across all three signature tiers within a single platform. Its QTSP accreditations cover France, Spain, and multiple other EU markets, with the qualified archiving and identity verification capabilities integrated into the same workflow, eliminating the need to manage separate tools for each step.
The Practical Recommendation
For most HR teams, the answer is not a single signature type, it is a tiered approach that matches the legal risk of each document to the appropriate level of assurance.
Start with your highest-volume, highest-risk document: the employment contract. Define whether AES is sufficient for your jurisdiction and typical dispute profile, or whether QES is warranted for certain categories of hire. Then map the rest of your HR document portfolio against the table above, and check whether your current platform supports the tiers you actually need.
The goal is not to use the highest level of signature for everything, that would add unnecessary friction for low-risk documents. The goal is to use the right level for each case, reliably and consistently, with a documented rationale that will hold up if the process is ever scrutinised.
In a labour tribunal, a well-documented, appropriately-signed digital workflow is significantly stronger than either paper or a poorly-configured e-signature tool. That is the core case for getting this right.
Signaturit Group by Namirial is Europe’s largest Qualified Trust Service Provider, offering all three eIDAS signature tiers (Simple, Advanced, and Qualified) within a single HR-ready platform. Identity verification, qualified timestamping, and certified long-term archiving are included as part of the same workflow. Discover how HR teams across Europe are using Signaturit to build compliant, scalable digital document processes.
